Stroller



FIG. 1 is a perspective view of a stroller showing my new design;

FIG. 2 is a front elevational view thereof on a reduced scale;

FIG. 3 is a rear elevational view of FIG. 2;

FIG. 4 is a right side elevational view of FIG. 2, it being understood that the left side is a mirror image thereof;

FIG. 5 is a top plan view of FIG. 2; and

FIG. 6 is a bottom plan view of FIG. 2. 

The ornamental design for a stroller, as shown and described. 